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OPPO A72
Android 10.0
1. Find "Number"
Press the phone icon.
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Press the menu icon.
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Press Settings.
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Press Voicemail.
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Press the required SIM.
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Press Advanced Settings.
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Press Number.
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2. Save voicemail number
Key in +447836121121 and press OK.
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+447836121121
3. Return to the home screen
Press the Home key to return to the home screen.
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